Nut-lock.



J. l. www.

' NUT LOCK.

APPLICATION FILED DEC.22. |916.

narra satana rerun critic.

JOHN il'. MACKAY, OF LAKE CHARLES, LOUISIANA.

NUT-LOCK.

Lasagna.

To @ZZ whom t may concern.'

Be it known that l, JOI-IN J. MAGKAY, a citizen 'of the United States,residing at Lake Charles, in the parish of Galcasieu and State ofLouisiana, have invented certain new and useful Improvements in Nut-Locks, of which the following is a speciication, reference being hadtherein to the ac-` Y Still a further object of this invention is in theproduction of a biiurcated portion upon one end of a key whichbifurcated portion is provided with a beveled outer face Vso as to lieflush with the corresponding 'ace of the nut.

'VVith these and other objects in view, this invention consists of'certain novel constructions, combinations and arrangements of parts aswill be hereinafter more fully de- Bo scribed and claimed.

In the drawings:

Figure 1 is a side elevation of a bolt and nut showing the device inoperation.

Fig. 2 is a section taken on the line 2 2 ci Fig. l.

Fig. 3 is a section taken on the line 3--3 oi" Fig. 2.

Fig. 4 is a detail perspective view of the hey used in connection withthis device. 4@ Fig. 5 is a section taken on the line 5-5 By referringto the accompanying drawings by numerals, it will be seen that 1designates the bolt which is provided with the threaded portion 2 whichis adapted to receive the nut 3. The nut 3 is provided with thetransverse opening 4 which extends wholly within the body of the nut asis clearly shown in Fig. 2.

to By referring to F ig. 3, it will he seen that this opening is adaptedto receive the key 5 in such a manner that the threaded portion 2 willbite into said key so as to prevent the nut from unscrewing on thethreaded portion.

By referring to Fig. 4, it will be seen- 'that Speccatonof LettersPatent.

Patent-eri sept. 4, rait.

Application led December 22, 1916. Serial No.7138,422.

the key used in connection with this device is provided with thebifurcated end portions (i and 7. rlhe end portion 7 is bifurcated so asto forni the slot 8 and the end (i is bifurcated so as to forni the slot9. It will be seen by referring to the saine ligure that the end portionG is beveledI so that the same will lit iush with the face 8 of the nut3 asis clearly shown in Fig. 2 and it will also be seen that this end isprovided with the channel portions 10 within the slot 9. The purpose ofthese channels 10 is that when the key is inserted in the portions shownin Fig. 2 a. nail or other like implement maybe driven into the channel10 in such a manner as to spread the slot su'tliciently because the end6 will bind upon the inner face of the transverse opening 4. It will beseen that when this end 6 is in the described position, 'l

that it will eihciently prevent the accidental displacement of the keyso that the same will not be easily knocked out but will not prevent thesaine being driven out if so desired.

rEhe main purpose of the slots 8 and 9 is to allow the key to he easilyinserted within the transverse opening 4. Bl referring to Figs. 1 and 2,it will be seen that the slots are adapted to extend parallel with theiace 1l of the nut so that when the key is driven into the aperture thethreaded portion 2 will go between the bifurcated portions, therebymaking it easy for the threads to cut into the key'as is shown in Fig.3. By having the threads cut into the key, it will he seen that the keymay be removed from the opening 4 without injuring the threads so thatthe bolt may be used indefinitely.

From the above description, it will be seen that a nut lock has beenproduced which is provided with a key which will taugen tially engagethe threaded portion of the nut in such a manner as to eiiicientlyprevent the rotation of a nut and at the same time the key may heinserted or removed without substantially injuring the threaded portierici the holt. It will also he seen that a key has been provided with aconstruction which will allow the key to be sufficiently locked withinthe nut so as to prevent the accidental displacement of the said key.

What I claim is:

1. In a device of the class described, the combination of a bolt, a nutcarried upon said holt, a transverse opening provided Wholly Within thebody of said nut, a key adapted to be inserted Within said nut, said keyprovided with slots at each of its ends, said slots adapted to eXtendparallel With the under face of said nut so as to allovv said key to beinserted Within said slot in such a manner that the threads Will easilyout into said key. Y

2. In a device of the class described, the combination o a bolt, a nutcarried upon said bolt, a transverse Opening provided Wholly Within thebody or' said nut, a key -adapted to be inserted Within said nut, saidkey provided with slots at each of'its ends,

said slots adapted to extend `parallel with 15 the under face of saidnut, one end of said Y key being beveled so as to t flush with thecorresponding side of said nut, said end provided With a channelextending Within said slot whereby a pointed instrument may 20 be drivenin said channel so as to spread said slot, thereby eiciently lockingsaid Vkey Within said nut so as to lprevent the accidental displacementof the sanne.' Y Y In testimony whereof I'lnelllntoV aiX my 25signature.

Y JOHN J. MCKAY.

GOPes of this patent may be obtained foi` five cents each, by addressingthe Cbmmissi'me of Patents,

Wahingtn, D. G. Y Y

